May 21, 2012

Post: Testing Fusion-io ioDrive

…. Driver information: Fusion-io driver version: 2.3.10 build 110; Firmware v5.0.7, rev 107053 Following the format of previous benchmarks… more interesting when we go to read sync IO, with 1-64 threads. Throughput: Response time: For same cases (i.e… !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id…

Comment: How to replace a NDB node on EC2

…=4 @10.0.0.1 (mysql-5.1.56 ndb-7.1.13, Nodegroup: 0, Master) id=5 @10.0.0.3 (mysql-5.1.56 ndb-7.1.913 starting, Nodegroup: 0) ndb_mgm> all status; Node 4: started (mysql-5.1.56 ndb-7.1.13…

Post: Percona welcomes Drizzle 7.1

… patches have been merged Since Drizzle 7.0 (which was released last year), there have been over 3,500 commits to Drizzle from… be implemented in relatively small amounts of code. Installing Drizzle 7.1.33-stable The source tar package is available from the…. Please see the Drizzle manual on how to install Drizzle 7.1.33-stable from source tar package. The Ubuntu packages are…

Post: Multi Range Read (MRR) in MySQL 5.6 and MariaDB 5.5

…and o_orderdate < date_add( '1993-08-01' ,interval '3‘ month) and l_returnflag = ‘R’ and c_nationkey =…1 1 1 1 1 Created_tmp_tables 1 1 1 1 1 Handler_mrr_init N/A 0 0 1 1 Handler_mrr_rowid_refills N/A N/A N/A 1 0…_custkey 5 dbt3.customer.c_custkey 7 100.00 Using where 1 SIMPLE lineitem ref PRIMARY,i_l…

Comment: How to recover a single InnoDB table from a Full Backup

… the export files SET GLOBAL innodb_import_table_from_xtrabackup = 1; ALTER TABLE data IMPORT TABLESPACE; After those being done i…: 9 indexes have been detected. InnoDB: Progress in %: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15… 99 100 done. 120323 4:38:52 InnoDB: Error: page 0 log sequence number 6094071743825 InnoDB: is in the future! Current…

Post: Faster Point In Time Recovery with LVM2 Snaphots and Binary Logs

…11.04 (Natty) and CentOS 5.7 includes packages with this feature,… Merged: 2.3% mysql-data: Merged: 0.2% mysql-data: Merged: 0.0% Merge of…emp_no = 10001; +———-+ | count(*) | +———-+ | 0 | +———-+ 1 row in set (0.00 sec) mysql> show tables; +———————+ | Tables_in_employees…

Post: Best kept MySQLDump Secret

…B | | C | +——————–+ 3 rows in set (0.00 sec) mysql> select count(*) from A; +———-+ | count(*) | +———-+ | 2359296 | +———-+ 1 row in set (1.73…03-23 7:27:18 SESSION1: mysql> select * from C; +——+—+ | t | i | +——+—+ | test | 0 | +——+—+ 1 row in set (0.00 …

Comment: Avoiding auto-increment holes on InnoDB with INSERT IGNORE

… your my.ini file. # =0 is traditional lock mode == > funcionality of auto_increment like before 5.1.22 # =1 is default value – consecutive… don’t investigate what it do innodb_autoinc_lock_mode=0 2. restart mysql server now is working perfectly id – is…’),(‘Oto’),(‘Jan’),(‘Jan’),(‘Jan’),(‘Romco’); select * from tab order by 1; 1 Peter 2 Oto 3 Jan 4 Romco ===> not 7 Romco as before

Comment: InnoDB thread concurrency

…thread 0 (thread id: 18578) state: waiting for completed aio requests (insert buffer thread) I/O thread 1… aio requests (read thread) I/O thread 3 (thread id: 18581) state: waiting for completed …completed aio requests (write thread) I/O thread 7 (thread id: 18585) state: waiting for completed …

Post: XtraDB storage engine release 1.0.3-7

… XtraDB release 7. This is the last release based on InnoDB plugin version 1.0.3, as you might know Innobase has released 1.0.4. The release includes following new features: MySQL 5.1.37 as… are located on http://www.percona.com/mysql/xtradb/5.1.37-7/ The latest source code of XtraDB, including development branch…